Ready-to-Use PureStrand 40 mM dNTP Mix contains each nucleotide at a 10 mM concentration. Purity of dNTPs is essential for any PCR, Real-Time PCR and cDNA Synthesis application as inhibitors and contaminants can interfere with DNA polymerases and template. PureStrand Ultra-Pure dNTPs are purified using exacting processes to eliminate the presence of PCR-specific inhibitors such as tetraphosphates and pyrophosphates. The presence of contaminating impurities can result in a decrease in amplification sensitivity and product yield. The performance of each lot of PureStrand 40 mM dNTP Mix is tested in PCR, long PCR and qPCR for sensitivity and reproducibility.